Casting-mold.



P. J. CONLN.

CASTING MOLD.

APPLICATION FILED senz?, I9I6.

Patented May 29, 1917.

Co/zia.

atto/smut( I mams usas au.. no1-dumm. wumnc miren sTATEs PATRICK J. coNLoN, .or NORTH ADAMS, ivrA'ssAcnUsETTs.v

CASTING-MOLD.

Specification of Letters Patent.

Patented May 29, 1917.

Application Ifiled. September 27, A191.6. Serial No. 122,462.

To all whom t mag/concern.'

Be it known thatI,'iPATR1oK J. CoNLoN, a citizen of the United States, residing at North Adams, in the ,countyof Berkshire and State of Massachusetts, have invented new and useful Improvements in Casting-l Molds, of which the following is a specication. This invention relates to cutting blocks used in connection with edgetools 'orhdies to receive or oppose the thrust of the latter; Such blocks are usually made Aof ywood and when the working surface'wears down, it is renewed by smoothing off the same.l This operation soon renders the block unlitfor further use, andthe re-surfacing is usually required to be done outside the shop 'atmo're or less expense. The present invention therefore has for its object to provide'a novel and improved mold for applying to the cutting block a working surface'or face of soft metal'which can .be readily renewed when worn down.

In order that the invention maybe better understood, reference is had to the accompanying drawing forming a part of this specification.

In'the drawing, Y v

Figure 1 is a perspective view of the mold employed for casting on the metal facing, the block being shown positioned in the mold ready for the'operation;

Fig. 2 is an end view of the parts shown in Fig. 1, and

Fig. 3 is a longitudinal section thereof.

Referring specifically to the drawing, the

cutting block is of skeleton formation and it is made entirely of metal.v The blockisrectangular in shape and it is composed'of side and end walls 10 andf11,respectively, and a top 12. The top is sunken, or setvbelow the top edges of theside and end walls so that a renewable facing 13 of soft metal may be applied thereto. Beneath the top of the block, the endv walls lare connected by two parallel longitudinal webs 14, and adjacent to the end walls cross webs 15 extend between the longitudinal webs and the side walls of the block.

In the top wall 12, near 'the ends thereof, are apertures 16 into which the soft metal forming the facing 13 also flows when it is cast on, to assist in anchoring the facing in place. These apertures are countersunk as shown in Fig. 3 to obtain a firm hold on the metal. Additional anchoring means for the facing are also provided, the saine compris ing screws 17 tapped through the top wall adjacent to the corners of the block and projecting a short distance above said wall so that the facing may be cast around said projecting ends. Vhere the screws pass through the top wall, the latter has,` at the bottom,'bosses '1S to obtain sufficient metal to VholdV the'screws. The screws also reinforce the facing and prevent buckling thereof under the blows of the vcutters or dies.

- When 'the facing 13' is scored or worn down so as to renderthe block unfit for further use, it can be readily yremoved and renewed. The old metal remaining can be removed and melted up with the necessary quantity of new metal, so that there is no loss except that which results from wear of the facing. The skeleton formation of the block reduces itsv weight and cost to a minimum. v

The'mold for casting the facing 13 onto the block comprises a base plate 19 longer andv wider than the block, and having means for supporting the block face downward or inverted, and spaced a distance from the top of the base corresponding to the thickness of the facing to be applied, with side and end walls 20 and 21 closing up the mold ,space at the sides and ends. The side walls are angle bars which are fastened down on top of the base plate.V The block fits *snugly* between the angle bars, and has lugs 22 f on kits sides which engage the vtop edges cfg-.said bars and serve to hold the block spaced f from the base plate the proper-distance? Oney of the end walls 21 is also an angleV bar which is bolted or otherwise fixed tothe base plate. The other end wall. is .-a plainjrnetal plate seating betweenl theside walls" 20 and fresting on topofthe base plate and vagainst one of the end walls 11 of the block. This plate has a bottom opening 23 forming a gate through which the metal is poured. Before this is done, the mold is tilted by raising its pouring end as shown in Fig. 3, this being effected by set screws 2A threaded through the base plate 19.

One of the side bars 20 is bolted or otherwise secured to the base plate 19 as shown l at 25, and the other side bar is so mounted that it may be retracted to facilitate the removal 0f the linished block. Alongside the last-mentioned side bar, parallel thereto, extends an angle bar 26 which is xed on top of the base plate 19 in spaced relation to said side bar. Through the upstanding flange of the bar 26 are threaded set screws 27 adapted to be screwed inward against the last-mentioned side bar until the block is securely held between said side bar and the opposite one. When the block is finished, it can be readily removed from the mold upon backing the set screws away from the side bar, which leaves the latter free to be retracted from the side of the finished block. The set screws 27 engage the side bar at the angle so that said bar is vfirmly clamped down on the base plate and also against the side of the block. Against the rear face of the upstanding flange of the angle bar 26 seat nuts 28 through which the screws 27 pass. The end of each nut 28 which faces the iiange of the bar 26 has a knife edge 29 which seats in a groove in said flange; whereby the nut is prevented from turning and the set screw is locked.

By the mold hereinbefore described the block can be easily and cheaply re-faced, and there is no waste of metal.

I claim l. A mold for casting a facing on an article, comprising a base plate, side and end walls mounted on the base plate, the article being positioned above the base plate inside the side and end walls and spaced from the base plate, one of the walls having Copies of this patent may be obtained for a pouring opening, and the article having side lugs seating on opposite Walls and holding the article spaced from the base plate. l

2. A mold for casting a facing on an article, comprising a base plate, side and end walls mounted on the base plate, the article being positioned above the base plate inside the side and end walls and spaced from the base plate, one of the walls having a pouring opening, and the article having side lugs seating on opposite walls and holding the article spaced from the base plate, one of the side walls of the mold being adjustable toward and from the corresponding side of the article.

3. A mold for casting a facing on an article, comprising a base plate, side and end walls mounted on the base plate, the article being positioned above the base plate, one of the walls'having a pouring opening, the article having side lugs seating on opposite walls and holding the article spaced from the base plate, one of the side walls of the mold being loosely mounted on the base plate, a support on the base plate adjacent to the last-mentioned side wall, and set screws threaded through said support to engage said side wall.

In testimony whereof I affix my signature.

PATRICK J. CONLON.

ve cents each, by addressing the Commissioner of Patents,

Washington, D. C. 

